Rotary pump.



D. DREIER.

ROTARY PUMP.

APPLIOATION FILED Anm, 1911.

Patented Mar. 5, 1912.

/lll/ lnventqr Attorngeys4 Vle nommer: Daarna, or sPR'rNGnALn. MONTANA.

Specification of '.ietters Patent.

" TED srarrgs @TENT OFFICE.

ROTARY PUMP.

To .ufl/.Z 'whom it may concern: t

lle it known that I,DOMINICK Drinnen, a citizen of the `United States, residing at ltiapringdale, in the county of Park and State of Montana, have invented a new and useful Rotary Pump, of which the following is a Y spi'eification.

rthis invention relates to pumps, and more especially to those of that-type which rotate; and the objects of the same are'to simplify the construction of a pump of this character, reduce the number of its parts, avoid the necessity for the use of a spring,` and at the saine time do away with friction as faras possible. These objects are accomplished by the construction hereinafter more fully de scribed and claimed, and as shown in the ac-l companying drawings, wherein-f Figure 1 is a side elevation of thispump with the face plate near thereader removed. Fig. 2 is a central vertical section therethrough.` Fig. 3 is a central vertical' seetion ou a right angle tothe section of Fig. 2, taken. on the line 3-3 of-Fig. 1. Fig. 4 is a perspective det-ail of one of the wings.

ln the drawings the numeral 1 designates the rear face plate having-a socket bearing 2 at its center and Va flange 3 around itspe- "iphery, and the numeral 4 designates the front. face plate having a tubular bearingat. its center and a flange 6 around its periphery. The said langes are turned toward each other as. seen in Fig. 3, and between them embraced the rim 7 which complements the face plates and makes up the' casing, this rim having through it an inlet opening and adjacent. thereto (or elsewhere il. preferred) an outlet opening S) with a partition l() between those ,openings if they do stand adjacent, as seen in Fig. 2. This View shows the pump disposed in an uinfight position although it would operate successfully it disposed in a horizontal position. l. prerteuto employ it under water, and il so 'a strainer 11 may `be placed over the inlet el to prevent sand and other eX- traneous matter from getting into the pump,

and of course a pipe (not shown) will lead trom Athe outlet to the point where it is desireil todeliver the water. The entire deco is prcierably of metal, and the dimen- 1 ons of its various parts .are immaterial to the suecesstul operation of the whole. 'lflie numeral 1.5 designates a hub having :l hatt litl at one extremity of its axis niet; is mounted for rotation in the socket bearing 2, and having a sha t't- 17 prom shaft 1'? preferably passes through a. stalling box 18 1n the tubular bearing 5, so as to pre-- vent leakage, whereas it will be impossible for any leakage to occur through the socket bearing 2 and no stuffing box will be needed at that side of the easing. The hub -is" truly cylindrical in shape except for slots 19 to be described below and annular notches 20 around the outer corners of its two Yends; and againstsaid ends are disposed end plates 21 and 22 which have annular` ribs 23 fitting in said notches' 20 and which are/held' against the extremities of the hub by :the face plates of the easingf- In this condition the hub and its end plates make up a spool-shaped rotary member mounted within 1 the casing and capable of rotation therein on its shafts 16 and 17 which ot course turn in their respective bearings.

In the inner faces ot' theend plates 21 and 22 are eut slots 29 standing in alinementwith and therefore forming continuations of the slots 19 which are cut into the hub 'from its periphery and extend throughout its length. lt. will be observed from Fig. 2 that there .are tour of these combined slots 19-29 disposed equi-distant around the axis andeach standing in a planesomewhat between a true radius of the hub and a true tangential line from its periphery, although they all would stand on tangents to a circle which touches the inner ends of the slotslt), and all 'these composite slots are disposed each' respetively atright angles' to those next adjacent it. Mounted in each slotis a wing (best seen in Fig. 4f) which comprises a` grooves (best seen in Fig. 1) in which the rollers 32 travel, and these grooves have a depression at `the proper point to cause the Wings to move inward Just as their blades l Patenteqiaar. 5, y1912. Application filed April 6, 1911. Serial N o. 619,418. y'

' 30 lreach and must pass the inner edge of the partition 10. Fig. 2 shows one blade as just 'wings will have a certain centrifugal tendgrooves 'S5-36 which engage the rollers 32,4

passing said partition. The outer edges or peripheries. of the walls A34: have outwardly projecting flanges 37 which engage the flanges 3 and 6 of the end plates so that the space between the walls 34 of the rim and arms lv of the wings.

Then power is applied to the shaft 17 and the hub rotated, it carries with Y, it the several wings which are caused to have their proper movement-s in the combined' slots 19-29 by reason of the shape of the cam andhence I avoid the necessity for any springs as the outward and inward movements of the wings are entirely positive, and no lubrication is necessary other than the l water because the arms 3l are not truly radial to the hub. It will be clear that" the water taken in at the inlet 8 4is delivered through the outlet 9, whence it can be conveyed to any point that it is desired to use it, t-hrough a system of piping not necessary to illustrate. If the'device is used beneath the surface of the water the latter will enterA by reason ofits own pressure, but otherwise it may be directed into the inlet in any suitable manner or the pump may be permitted to suck it in. When the rotation is slow the cam groove alone will cause the movements of the wingsI in and out, but it is obvious that when the rotat-ion is more rapid these ency so that practically the only function. remaining to t-he cam groove is Where its depression 36 pushes each wing inward as the latter passes'the partition 10.

lVhat is claimed as new is l. In a rotary pump, the combination with a casing consisting of face plates, a rim between said plates'and having a cam groovev in one of the outer faces of its walls, the said face being separated from the corresponding face plate, the said rim having an inlet 4and an outlet therein, anda partition b'etween the inlet and outlet, of av lhub rotatably mounted in the casing-the hub being provided with` a slot in its body, a wing slidj ablymounted in said slot, an .arm projecting outwardly` from the wing into the space between the wall of the rim and the adjacent face plate, and a member on the said arm en- Agaglng the said cam groove.

2. In a rotary pump, the combination with a* casing consisting of face plates whereof one has a socket bearing and the other a tubular bearing, a rim of channeled metal between said plates and having cam grooves in the outer faces of its walls, an in.- let and an outlet disposed adjacent each other through said rim,a partition between them, and engaging flanges on the rimwalls and on the' face plates and holdinfr these elements separated; of a hub having a. stub shaft mounted'in said socket bearing anda power shaft mounted through said tubular bearing, thehub being provided with slots in its body, a series of' wings slidably mount- -ed in said 'slots,'an arm projecting utward from each end of each wing into the space between that wall of the rim' and the adjacent faceplate, and an anti-friction roller on each arm engaging one of said cam grooves. l

Y 3. In arotary pump, the combination with a casing having an adjacent inlet and outlet through its periphery and a partition between them, and having annular cam grooves with a depression opposite said partition; of a hub mounted for rotation within said casing and having annular notches around its corners, two end plates for said hub having annular ribs fitting said notches,

the hub and the plates being providedwith a series of slots registering with each other and each disposed on a line between a radius of and a tangent to said huh, and a series of wings mounted slidably in said slots and each comprising a blade, arms projecting outward from the extremities of said blade, and anti-friction rollers at the outer ends of said arms traveling in the cam grooves. In testimony that I claim .the foregoing as my own, I have hereto aflixed my signature in the presence of two witnesses.

' DOMINICK DREIER.

lVitnesses: 1

E. M. NiLns, S. F. SWAN. 

